MIMS Catalogue

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DOI: 10.15493/DEA.MIMS.15382023

Long-term observations of hourly bottom temperatures at Port Nolloth, South Africa

Here we present a collection of raw and processed temperatures from Underwater Temperature Recorders (UTRs) located off Port Nolloth, South Africa. At selected sites around Southern Africa, UTRs have been used to obtain long-term records of bottom temperatures in the nearshore environment, at depths ranging from 2m to 34m.

DOI: 10.15493/DEA.MIMS.26052050

Long-term moored observations from the eastern part of the South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA)

Here we present long-term observations from the South Atlantic Meridional Overturning Circulation Basin-wide Array (SAMBA) transect in the Cape Basin region along 34.5°S. SAMBA forms part of the South African component of the International South Atlantic Meridional Overturning Circulation project (SAMOC-SA), which aims to characterise the time-mean and time-varying components of the SAMOC in the South Atlantic Ocean and monitor the variability of the main Southern Ocean frontal systems associated with the Antarctic Circumpolar Current (ACC), south of Africa.

DOI: 10.15493/DEA.MIMS.13912023

Long-term monitoring of inshore temperatures in Elands Bay to support physiological research

To better understand the physiological effects of climate change and ocean acidification on marine organisms, information on the environmental conditions experienced in their natural habitats is required. Data from long-term monitoring studies capture in situ variability of environmental parameters that are used to relate experimental findings with field conditions. Elands Bay on the west coast of South Africa is a key location for such research and monitoring. It is a popular location for West Coast rock lobster (Jasus lalandii) fishing and therefore an important sentinel site for a commercial fishery species and the benthic communities upon which it depends. Low pH conditions exist along the west coast due to effects of upwelling, while cold-bottom waters in Elands Bay often result in low oxygen events responsible for mass walkouts of rock lobster. Additional exposure to extreme stressors associated with climate change can exacerbate impacts on their physiological processes. For...

DOI: 10.15493/dea.mims.26052350

Long-term monitoring of seawater temperature in the microhabitats of intertidal marine invertebrates in Sea Point, South Africa

To better understand the physiological effects of marine invertebrates to changing environmental conditions, long-term monitoring which captures the natural variability of environmental parameters is required. In this way, experimental findings can be related back to field conditions, and better predictions can be made as to how marine invertebrates, particularly in the harsh intertidal, will fair with rising temperature. In May 2020, Cape Sea Urchins, Parechinus angulosus, were collected from intertidal rock pools at Sea Point, which is situated along the southwest coast of South Africa. After chronic incubation in low pH conditions at the Department of Forestry, Fisheries and the Environment (DFFE) Sea Point Research Aquarium, their response to thermal stress was investigated in recent experimental trials. To calculate the thermal window for these marine invertebrates, both habitat temperatures, as well as their threshold temperatures are required. The latter was obtained by...

DOI: 10.15493/DEA.MIMS.15222023

Long-term observations of hourly bottom temperatures at Paternoster, South Africa

Here we present a collection of raw and processed temperatures from Underwater Temperature Recorders (UTRs) located off Paternoster, South Africa. At selected sites around Southern Africa, UTRs have been used to obtain long-term records of bottom temperatures in the nearshore environment, at depths ranging from 2m to 34m.

DOI: 10.15493/DEA.MIMS.15192023

Long-term observations of hourly bottom temperatures at Hout Bay, South Africa

Here we present a collection of raw and processed temperatures from Underwater Temperature Recorders (UTRs) located off Hout Bay, South Africa. At selected sites around Southern Africa, UTRs have been used to obtain long-term records of bottom temperatures in the nearshore environment, at depths ranging from 2m to 34m.

DOI: 10.15493/DEA.MIMS.15182023

Long-term observations of hourly bottom temperatures at Elands Bay, South Africa

Here we present a collection of raw and processed temperatures from Underwater Temperature Recorders (UTRs) located off Elands Bay, South Africa. At selected sites around Southern Africa, UTRs have been used to obtain long-term records of bottom temperatures in the nearshore environment, at depths ranging from 2m to 34m.

DOI: 10.15493/DEA.MIMS.21042025

Processed underway Thermosalinograph (TSG) observations from SA Agulhas II Voyage 061, December 2023 - February 2024

Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected, between 26 December 2023 and 20 February 2024, during voyage 061 on the SA Agulhas II. A SeaBird SBE45 Thermosalinograph (TSG) is used to opportunistically collect underway near-surface temperature and conductivity measurements during research and monitoring cruises. Water is continuously pumped to the TSG from an intake located in the hull of the vessel, and the observations are continuously interfaced with navigational information. A temperature sensor close to the intake provides temperature measurements of the incoming water (T1). The temperature of the water inside the conductivity cell (T2) is used to accurately compute salinity (S) from the conductivity measurements (C).

DOI: 10.15493/DEA.MIMS.19042025

Processed underway Thermosalinograph (TSG) observations from SA Agulhas II Voyage 056, December 2022 - February 2023

Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected, between 16 December 2022 and 12 February 2023, during voyage 056 on the SA Agulhas II. A SeaBird SBE45 Thermosalinograph (TSG) is used to opportunistically collect underway near-surface temperature and conductivity measurements during research and monitoring cruises. Water is continuously pumped to the TSG from an intake located in the hull of the vessel, and the observations are continuously interfaced with navigational information. A temperature sensor close to the intake provides temperature measurements of the incoming water (T1). The temperature of the water inside the conductivity cell (T2) is used to accurately compute salinity (S) from the conductivity measurements (C).

DOI: 10.15493/DEA.MIMS.15042025

Processed underway Thermosalinograph (TSG) observations from Algoa Voyage 298, January 2024

Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected, between 22 January and 26 January 2024, during voyage 298 on the RS Algoa. A SeaBird SBE45 Thermosalinograph (TSG) is used to opportunistically collect underway near-surface temperature and conductivity measurements during research and monitoring cruises. Water is continuously pumped to the TSG from an intake located in the hull of the vessel, and the observations are continuously interfaced with navigational information. A temperature sensor close to the intake provides temperature measurements of the incoming water (T1). The temperature of the water inside the conductivity cell (T2) is used to accurately compute salinity (S) from the conductivity measurements (C).

DOI: 10.15493/DEA.MIMS.13042025

Processed underway Thermosalinograph (TSG) observations from Algoa Voyage 297, January 2024

Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected, between 12 January and 17 January 2024, during voyage 297 on the RS Algoa. A SeaBird SBE45 Thermosalinograph (TSG) is used to opportunistically collect underway near-surface temperature and conductivity measurements during research and monitoring cruises. Water is continuously pumped to the TSG from an intake located in the hull of the vessel, and the observations are continuously interfaced with navigational information. A temperature sensor close to the intake provides temperature measurements of the incoming water (T1). The temperature of the water inside the conductivity cell (T2) is used to accurately compute salinity (S) from the conductivity measurements (C).

DOI: 10.15493/DEA.MIMS.11042025

Processed underway Thermosalinograph (TSG) observations from Algoa Voyage 293, August 2023

Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected, between 15 August and 22 August 2023, during voyage 293 on the RS Algoa. A SeaBird SBE45 Thermosalinograph (TSG) is used to opportunistically collect underway near-surface temperature and conductivity measurements during research and monitoring cruises. Water is continuously pumped to the TSG from an intake located in the hull of the vessel, and the observations are continuously interfaced with navigational information. A temperature sensor close to the intake provides temperature measurements of the incoming water (T1). The temperature of the water inside the conductivity cell (T2) is used to accurately compute salinity (S) from the conductivity measurements (C).

DOI: 10.15493/DEA.MIMS.09042025

Processed underway Thermosalinograph (TSG) observations from RS Algoa Voyage 266, November 2019

Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected, between 04 November and 14 November 2019, during voyage 266 on the RS Algoa. A SeaBird SBE45 Thermosalinograph (TSG) is used to opportunistically collect underway near-surface temperature and conductivity measurements during research and monitoring cruises. Water is continuously pumped to the TSG from an intake located in the hull of the vessel, and the observations are continuously interfaced with navigational information. A temperature sensor close to the intake provides temperature measurements of the incoming water (T1). The temperature of the water inside the conductivity cell (T2) is used to accurately compute salinity (S) from the conductivity measurements (C).

DOI: 10.15493/DEA.MIMS.07042025

Processed underway Thermosalinograph (TSG) observations from Algoa Voyage 252, August 2018

Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected, between 20 August and 28 August 2018, during voyage 252 on the RS Algoa. A SeaBird SBE45 Thermosalinograph (TSG) is used to opportunistically collect underway near-surface temperature and conductivity measurements during research and monitoring cruises. Water is continuously pumped to the TSG from an intake located in the hull of the vessel, and the observations are continuously interfaced with navigational information. A temperature sensor close to the intake provides temperature measurements of the incoming water (T1). The temperature of the water inside the conductivity cell (T2) is used to accurately compute salinity (S) from the conductivity measurements (C).

DOI: 10.15493/DEA.MIMS.05042025

Processed underway Thermosalinograph (TSG) observations from Algoa Voyage 239, May 2017

Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected, between 22 May and 29 May 2017, during voyage 239 on the RS Algoa. A SeaBird SBE45 Thermosalinograph (TSG) is used to opportunistically collect underway near-surface temperature and conductivity measurements during research and monitoring cruises. Water is continuously pumped to the TSG from an intake located in the hull of the vessel, and the observations are continuously interfaced with navigational information. A temperature sensor close to the intake provides temperature measurements of the incoming water (T1). The temperature of the water inside the conductivity cell (T2) is used to accurately compute salinity (S) from the conductivity measurements (C).

DOI: 10.15493/DEA.MIMS.03042025

Processed underway Thermosalinograph (TSG) observations from Algoa Voyage 221, November 2015 - December 2015

Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected, between 30 November and 06 December 2015, during voyage 221 on the RS Algoa. A SeaBird SBE45 Thermosalinograph (TSG) is used to opportunistically collect underway near-surface temperature and conductivity measurements during research and monitoring cruises. Water is continuously pumped to the TSG from an intake located in the hull of the vessel, and the observations are continuously interfaced with navigational information. A temperature sensor close to the intake provides temperature measurements of the incoming water (T1). The temperature of the water inside the conductivity cell (T2) is used to accurately compute salinity (S) from the conductivity measurements (C).

DOI: 10.15493/DEA.MIMS.01042025

Processed underway Thermosalinograph (TSG) observations from Algoa Voyage 209, August 2014

Here we present the 6-second resolution processed Thermosalinograph (TSG) data collected, between 05 August and 12 August 2014, during voyage 209 on the RS Algoa. A SeaBird SBE45 Thermosalinograph (TSG) is used to opportunistically collect underway near-surface temperature and conductivity measurements during research and monitoring cruises. Water is continuously pumped to the TSG from an intake located in the hull of the vessel, and the observations are continuously interfaced with navigational information. A temperature sensor close to the intake provides temperature measurements of the incoming water (T1). The temperature of the water inside the conductivity cell (T2) is used to accurately compute salinity (S) from the conductivity measurements (C).

DOI: 10.15493/DEA.MIMS.48112024

Processed CTD discrete observations from the Current Meter and Sediment Trap Recovery Shelf Chemistry on the Africa Voyage 114, June 1993

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected, between 21 June and 30 June 1993, during voyage 114 in the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of Southern Africa. Neil Brown MK3 and MK4 CTD instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000.

DOI: 10.15493/DEA.MIMS.47112024

Processed CTD continuous observations from the Current Meter and Sediment Trap Recovery Shelf Chemistry on the Africana Voyage 114, June 1993

Here we present processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected, between 21 June and 30 June 1993, during the Current Meter and Sediment Trap Recovery Shelf Chemistry on the Africana Voyage 114, in the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of Southern Africa. Neil Brown MK3 and MK4 Conductivity-Temperature-Depth (CTD) instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000.

DOI: 10.15493/DEA.MIMS.46112024

Processed CTD discrete observations from the Anchovy Recruitment Survey on the Africana Voyage 112, May 1993

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected, between 18 May and 05 June 1993, during the Anchovy Recruitment Survey on the Africana Voyage 112, in the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of Southern Africa. Neil Brown MK3 and MK4 CTD instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000.

DOI: 10.15493/DEA.MIMS.45112024

Processed CTD continuous observations from the Anchovy Recruitment Survey on the Africana Voyage 112, May 1993

Here we present processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected, between 18 May and 05 June 1993, during the Anchovy Recruitment Survey on the Africana Voyage 112, in the Benguela Current Large Marine Ecosysten (BCLME) region on the west coast of Southern Africa. Neil Brown MK3 and MK4 CTD instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000.

DOI: 10.15493/DEA.MIMS.44112024

Processed CTD discrete observations from the South Coast Demersal Biomass Survey on the Africana Voyage 111, April 1993

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected, between 15 April and 12 May 1993, during the South Coast Demersal Biomass Survey on the Africana Voyage, 111 in the Agulhas Current Large Marine Ecosystem (ACLME) region on the south coast of Southern Africa. Neil Brown MK3 and MK4 CTD instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000.

DOI: 10.15493/DEA.MIMS.43112024

Processed CTD continuous observations from the South Coast Demersal Biomass Survey on the Africana Voyage 111, April 1993

Here we present processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected, between 15 April and 12 May 1993, during the South Coast Demersal Biomass Survey on the Africana Voyage 111, in the Agulhas Current Large Marine Ecosysten (ACLME) region on the south coast of Southern Africa. Neil Brown MK3 and MK4 CTD instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000.

DOI: 10.15493/DEA.MIMS.16122024

Processed CTD discrete observations from the Anchovy Recruitment Survey on the Africana Voyage 103, May 1992

Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected, between 12 May and 28 May 1992, during the Anchovy Recruitment Survey on the Africana Voyage 103, in the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of Southern Africa and the Agulhas Current Large Marine Ecosystem (ACLME) region on the south coast of Southern Africa. Neil Brown MK3 and MK4 CTD instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000.

DOI: 10.15493/DEA.MIMS.15122024

Processed CTD continuous observations from the Anchovy Recruitment Survey on the Africana Voyage 103, May 1992

Here we present processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected, between 12 May and 28 May 1992, during the Anchovy Recruitment Survey on the Africana Voyage 103, in the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of Southern Africa and the Agulhas Current Large Marine Ecosystem (ACLME) region on the south coast of Southern Africa. Neil Brown MK3 and MK4 CTD instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000.

Project

Location

Instrument

License

Essential Ocean Variables

Essential Biodiversity Variables

Selected Records Subset